Gas-engine valve.



R; E. DREN NON.

GAS ENGINE VALVE.

APPLICATION TILED FEB.21,1912.

1,084,410. Patented Jan. 13, 1914.

2 SHEETS-SHEET 1 WITNESSES INVENTOR fizz/6w t. fl/FF/VZVO/ BY l j gv ATTORNEYS R. E. DRENNON.

GAS ENGINE VALVE.

APPLICATION FILED FEB.21,1912

Patented J an. 13, 1914 2 SHEETS-SHEET 2.

kuxmibnw WITNESSES HTOIMEY8 UNITED STATES EPATEET @FFIGE.

RALEIGH EUGENE DRZZ'NNON, 0F ATLALNTA. GEORGIA.

GAS-ENGINE VALVE.

LOSAiQ.

Specific-Misti of Letters Zate'nt,

Patented 52m. 13. 1 31s..

the valve is removed access is permitted to every part of the cylinder.

In the drawings: Figure l is a fronteievation 0f the imprevement; Fig. 2 is a vertical section; Fig. 3 is a section on the line 3-3 of Fig. 2; Figs. 4 and 5 are diagrammatic views of the vaive frem. below showing the said mite in its open periods; Fig.6 a "perspec ive view of the valve and seat; Fig. 7 is aseetium of :1 metiified "arm. 01: the line '1 of and, Fig. 8 is section on time $3 8 0*:

Fig. '2.

In the present einbodirrient oi .l' linux21 5 tum. the cylinder 1 15; provided annuiur chumbereti prirtiun m mute from the crank shaft 3, mi i the said shaft s 30t1lfnfild in :1 cm; 4. onzzeet ed to the cylinder end. Th piston (7131inested to the crank shaft by it red 3, and the shaft has a pulley 7 at (me end, outside of the crank case, and a bevel gear whee]. at the other end.

The cylinder posts 9 and 9% near crank shat't. and! the enlarged to for: Law and i1, and the cylinder E; ed at the extreme e beyone the s'hwiiier 11. A disk PZOVM with an a'xizi stem 13 is seated in the and of the cylii 'u on the shoulder 1Q. The tiisk is pron with a passage 01- port 14-, at one side at its center, and a second disk of greater thick ness than disk 12 is seated on shoulder it. Disk 12 is at such thickness-r that when ed on shoulder 10 the outer face of the dis is fiush "with shoulder .11, and the inn of disk "15 fits the enter tam (if d: cleseiy. a

Risk 15 :1 centre me ape-11 v 1? stem 18, and said is prev tivo pass-ages 01- ports 17 and 18, of ti same size anti shape passage 14, and similarly located, se that either passage 1'? ex 18 mm register with pas e I and '18 d1;

t sigh the fal'i, m dist 1 I connect with passages and epenin the $1.

the disk. The straight anti direct, while passage 1? extends in are form around the center of the disk. .15 Shawn mare psiticuiari in Fig. 3, and the 1'?- zmd 1 are arranged to regisei- 1th the ports 9* 9 at t 2e eviinder. The port 9 is eximnst port, aizd ymt the inlet port 211d tize cylinder is Qf-JJidld with the uses; spay-it "1.9. I

The disk 1-3 is 05 such. thickness that the outer face there-0f flush e1 slightly abo e the eommeeeement of the threadet H r 20, and a ring threaded into ti ti e cyiimier for heidingiiie disks in (t n22; pwvitied v- 5 .A' I shaftitem we whee-t V 27 meshes with the wine? 1% part it is i sister with --9 and the products it .iiiifit, are iiYi' QH from When the ion zi'nwar'g mm '19 and a.

case and the other by when the piston begins the said downward or working stroke. The ports 17 and 18 are so arranged that during each four periods, each port is open during 'one period and closed during three periods. The port 18 is open during one period, the port 17 dur ing the next period, and both are closed during the two succeedin periods. The first position of the valve, t at is the position of the valve during the first period is shown in Fig. 5, the port 18 18 9 being open. The second period is shown in Fig. 4, the port l7-17 9" being open.

In the embodiment shown in Figs. 7 and 8, the cylinder 30 is jacketed, as shown at 31, and the end remote from the crank case has oppositely arranged ports 32 and 32. The disk or valve 33 has the axial stgm 34 and is seated on the annular shoulder 35. The gear wheel 36 is secured to the outer end of the stem, and the disk 37 is seated on the annular shoulder 38 of the cylinder, and is held in place by the rin 39, in the same manner as in the construction of Figs. 1 to 6.

The's'prin 40 is arranged on the stern be tween the wheel and the end of hub 41, and the disk 37 is provided with the ports or passages 42 and 43, each port or passage having a radial portion in the disk. The valve is provided with the port 44 for registering with ports 42 and 43, and the operation is precisely the same as that of the constructions shown in Figs. 1 to 6, the difference being merely in construction.

The port 44, as shown in Fig. 7, is in reg ister with port 43, which is the inlet port for the charge. The cylinder will be closed during the next two periods, and during the fourth period port 4 1 will be in register with port 32 to permit the products of combustion to exhaust.

All of the parts in both forms are easily accessible for cleaning or repairs, and the springs 2.) and 40 hold the valve snugly against the adjacent face of disk 15 or 37, the said disks being the valve seats. The counterboring of the shoulders for the valve seats, prevents the valves dropping into the cylinders, should the stem break, or the parts become disensawed.

' The cylinder in the improvement has both ends open, one end being closed by the crank the valve and valve seat. The valve is large, and has a large bearing surface, and hence wears evenly and smoothly, ,so that the lit is good and tight. at all linuts. l on ,od -nl' they may (hen the \-'ul\'(. and part of ilu: q

I claim,

l. .\n engine comprhsing a cylinder, a Qmnl;gzfieatonovndoflhecylimlor,'1crank shaft io'n'naled in the case, a piston in the he t'aSily removed. seat are r'emoved every ind r lS/U tfl'tll to inspection.

1 cylinder, a rod connecting the piston to the l crank shaft, the end of t e cyhnderremote i from the crank shaft being counterbored to i form a pluralitv of annular shoulders spaced apart from eac l oth er, the counter-bored disk val}? seated and the outer end of portion being threaded, a on the innermost shoulder, said v ii e havin an ecqntric port and an outwarr 1y exten ing axial'stem, a disk valve seat seatedon the outermost shoulder and contacting with the outer face of the valve and havin an axial opening for the stem, said seat having a plurality of passages, each passage opening at one end on the lower face of the seat alongside each other and in position to register with the port of the valve, and extending at the other end radially and opening at the side of the seat, the cylinder having lateral orts registering with the radial portions of tlie said passages, a ring threaded into the cylinder for locking the valve and seat in place, a gear wheel on the stem, a spring on the stem between the gear wheel and the seat, a valve shaft journaled longitudinally of the cylinder, 21 pinion on the shaft meshing with the gear wheel, and a driving connectionbetween the crank shaft and the valve stem.

2. An' engine comprising a cylinder, a. crank case at one end of the cylinder, a crank shaft journaled in the case, a piston in the cylinders to form the Should deposits of mm cylinder, a rod connectin the piston to the crank shaft, the end of t e from the crank shaft being counterbored to form a plurality of annular shoulders spaced apart from each other, and the outer end of the counterbored portion being threaded, a disk valve seated on the innermost shoulder, said valve havin an eccentric port and an outwardly exten' ihg axial stem, :1 disk valve seat seated on the outermost shoulder and contacting with the outer face of the valve and having an axial opening for the stem, said seat having a plurality of passages, each passage opening at one side-on the lower face of the scat alongside each other and in position to register with the port of the valve. and extending at thc'other end radially and opening at the side of the seat, the cylinder having lateral ports registering (Zith the radial portions of the said passag a ring I threaded into the cylinder for locking the i valve and seat. in place, a driving connection i between the stem and the crank shall", and a l spring pressing the valve toward the sept.

I 3. An engine comprising a cylinder, a l

crank case at one end of the cylinder, a trunk shalt: journaltul in the case, a piston in the cylinder, :1 rod connectin the piston [to llucrank shall, the end of tie cylinder l 'clnott'. from the crank shaft being counterbdred to form a plurality of annular shoulders spat-ed l apart from each other, a disk valve sea tcd on I the innerrziost shoulder, said valve having an ccntric port and an outwardly ('xl hding I axial 5mm a disk valve seat seated on the outermost sheuleier and contacting w M1 the outer face. of the valve and having an axial opening far the @Lem said. seat havmg a plumiity 0f mssay mnh passage opening at i one and on 1th: e nt ihe amt along- 1. pnsition t4: mgister ski: each nthar and a wrih flu: 390m 0i the valve, and extendmg at l the other and radml y and openmg at the x 19 31:36 oi the seat, the cynnder havmg lateral ports registering with the radial portions of the said pgssages, means for locking the seat to the cyhnder, a spmng, pressing the valve to the seat, and a, dn'ving cennectwn between the stem and t e crank shaft.

RALEIGH EUGENE DREFPIQ Wi messes WALDO (3- Pucnm, WAL'mB (J. x. 

